分光光度法测定银杏、海参、芦荟中锗含量

摘要

A new method for the determination of germanium in gingko , sea cucumber and aloe by spectropho-tometry was established. The absorbance is proportional to the concentration of Germanium in the range of 0.25μg/mL-1.10μg/mL. The linear regression equation obtained is A=0.003 0+0.726 4x (r=0.996 9).The re-covery in real sample is 93.80%-96.40%.The method is precise, selective, fast and need no separation, and it is applicable to determining Germanium in real sample.%　　建立了用分光光度法测定食品海参、银杏、芦荟中的痕量锗含量的方法，锗的含量在0.25μg/mL～1.10μg/mL范围内，吸收度与浓度成线性关系，线形方程为A=0.0030+0.7264x，相关系数r=0.9969。在实际样品中的回收率为93.80%～96.40%。该方法简单，准确，选择性好，不需对样品进行分离，适用于微量锗含量的测定。